Watersafe WS-425W Well Water Test Kit (10 parameters, DIY) review
Water test kit. No plumbing. This is a test, not a filter. No third-party certification on record. Claims below are manufacturer-reported.
What it removes
| Contaminant | Evidence | Stated reduction | Scope |
|---|---|---|---|
| Lead | Manufacturer-reported | not stated | |
| Total Coliform | Manufacturer-reported | not stated | |
| Nitrate (as N) | Manufacturer-reported | not stated | |
| Chlorine (residual) | Manufacturer-reported | not stated | |
| Iron | Manufacturer-reported | not stated | |
| Copper | Manufacturer-reported | not stated | |
| Hardness (as CaCO3) | Manufacturer-reported | not stated |
Certified is an NSF, WQA, or IAPMO listing for that claim. Manufacturer-reported reduction for iron. Not NSF-certified for iron.
A number. Not treatment.
DIY KIT (strips plus vial tests; not a lab test). Single-use well-water panel. Analytes covered in plain words: lead (immunoassay strip, detects to about 5 ppb), coliform bacteria (48-hour presence/absence vial), pesticides (atrazine/simazine strip), nitrate, nitrite, total chlorine, total hardness, pH, iron and copper. Manufacturer store page (Silver Lake Research) names lead, bacteria, iron, copper, chlorine and nitrates and says 9-10 contaminants; the pesticide, nitrite, hardness and pH items come from the Amazon listing and retailer descriptions of the WS-425W. Does not test arsenic, uranium, fluoride, PFAS or radon. Claims below mean 'kit detects this analyte' (tier manufacturer, reduction_pct null); pesticide, nitrite and pH have no catalog code. Price from Amazon proxy $34.99 (matches manufacturer store).